56251423 has 4 divisors (see below), whose sum is σ = 56451888. Its totient is φ = 56050960.

The previous prime is 56251417. The next prime is 56251441. The reversal of 56251423 is 32415265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32415265 = 5 ⋅6483053.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56251423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56251391 and 56251400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56252423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99811 + ... + 100372.

It is an arithmetic number, because the mean of its divisors is an integer number (14112972).

Almost surely, 2^56251423 is an apocalyptic number.

56251423 is a deficient number, since it is larger than the sum of its proper divisors (200465).

56251423 is a wasteful number, since it uses less digits than its factorization.

56251423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200464.

The product of its digits is 7200, while the sum is 28.

The square root of 56251423 is about 7500.0948660667. The cubic root of 56251423 is about 383.1579471572.

Adding to 56251423 its reverse (32415265), we get a palindrome (88666688).

The spelling of 56251423 in words is "fifty-six million, two hundred fifty-one thousand, four hundred twenty-three".